Conductive and roughening layer

Abstract

The invention relates to a material comprising a web wherein said web comprises at least one surface layer comprising polyether polymeric antistat, extrudable polymer, and compatibilizer wherein said surface layer has a roughness of greater than 0.3 Ra.

1. A material comprising a web wherein said web comprises at least one surface layer comprising polyether polymeric antistat, extrudable polymer, and compatibilizer wherein said surface layer has a roughness of greater than 0.3 μm Ra. 
     
     
       2. The material of  claim 1  wherein said surface layer has a resistivity of less than 13 log ohm/sq. 
     
     
       3. The material of  claim 1  wherein said polyether polymeric antistat comprises polyether block copolyamide. 
     
     
       4. The material of  claim 1  wherein said extrudable polymer comprises polypropylene. 
     
     
       5. The material of  claim 1  wherein said extrudable polymer comprises polyethylene. 
     
     
       6. The material of  claim 1  wherein said extrudable polymer comprises polyolefin terpolymer. 
     
     
       7. The material of  claim 1  wherein said extrudable polymer comprises polyester. 
     
     
       8. The material of  claim 1  wherein said roughness is between 0.3 Ra and 2 Ra. 
     
     
       9. The material of  claim 1  wherein said resistivity is less than 12.5 log ohm/sq. 
     
     
       10. The material of  claim 1  wherein said polyether polymeric antistat comprises between 15 and 85% weight by layer, said extrudable polymer comprises between 15 and 85% by weight of said layer, and said compatibilizer comprises between 0.2 and 20% by weight of said layer. 
     
     
       11. The material of  claim 1  further comprising slip additives. 
     
     
       12. The material of  claim 1  wherein said surface layer has a coefficient of friction of less than 0.3. 
     
     
       13. The material of  claim 1  wherein said surface layer comprises particles having a size range between 0.2 μm and 10 μm. 
     
     
       14. The material of  claim 13  wherein said particles are selected from the group consisting of silica, titanium dioxide, talc, barium sulfate, clay, and alumina. 
     
     
       15. The material of  claim 1  wherein said compatibilizer comprises at least one member selected from the group consisting of polyethylene, polypropylene, ethylene/propylene copolymers, ethylene/butene copolymers, polyethylene, polypropylene, ethylene/propylene copolymers, ethylene/butene copolymers grafted with maleic anhydride or glycidyl methacrylate, ethylene/alkyl (meth)acrylate/maleic anhydride copolymers wherein the maleic anhydride is grafted or copolymerized, ethylene/vinyl acetate/maleic anhydride copolymers wherein the maleic anhydride is grafted or copolymerized, ethylene/alkyl (meth)acrylate/maleic anhydride copolymers and ethylene/vinyl acetate/maleic anhydride copolymers wherein anhydride is replaced fully or partly by glycidyl methacrylate, ethylene/(meth)acrylic acid copolymers and their salts, ethylene/alkyl (meth)acrylate/glycidyl methacrylate copolymers wherein the glycidyl methacrylate is grafted or copolymerized, and grafted copolymers constituted by at least one mono-amino oligomer of polyamide and of an alpha-mono-olefin (co)polymer grafted with a monomer able to react with the amino functions of said oligomer. 
     
     
       16. The material of  claim 1  wherein said compatibilizer comprises at least one member selected from the group consisting of polyethylene, polypropylene, ethylene/propylene copolymers, ethylene/butene copolymers, polyethylene, polypropylene, ethylene/propylene copolymers, ethylene/butene copolymers grafted with maleic anhydride or glycidyl methacrylate, ethylene/alkyl (meth)acrylate/maleic anhydride copolymers, ethylene/vinyl acetate/maleic anhydride copolymers, ethylene/alkyl (meth)acrylate/glycidyl methacrylate copolymers, and ethylene/glycidyl methacrylate. 
     
     
       17. The material of  claim 1  wherein said compatibilizer comprises terpolymers of ethylene/methyl acrylate/glycidyl methacrylate or copolymers of ethylene/glycidyl methacrylate. 
     
     
       18. The material of  claim 1  further comprising thermally processable onium salt. 
     
     
       19. The material of  claim 18  wherein said thermally processable onium salt comprises between 0.1 and 10% by weight of the amount of said polyether polymeric antistat. 
     
     
       20. The material of  claim 1  wherein said compatibilizer comprises a compatibilizer grafted with maleic anhydride or glycidyl methacrylate.